Merge branch 'master' into vadz-doxygen

* master:
  Add Octave 4.4 to Travis allow_failures
  Fixes for appveyor image changes
  Javascript test-suite Makefile parallel jobs
  Add changes entry for csconstruct, dconstruct and javaconstruct fix
  Fix lookup of csconstruct, dconstructor and javaconstruct typemaps
  Javascript %nspace fix in generated C++ code
  Add C++17 documentation chapter
  Add changes notes for C++17 nested namespaces support
  Test for invalid C++17 nested namespace aliases
  Test c++17 nested namespaces and %nspace
  Add c++17 nested namespaces runtime test for C#
  Add c++17 nested namespaces runtime test for Python
  Add support for c++17 nested namespaces
  Update CHANGES.current
  .travis.yml: test against Octave 4.4
  Examples/test-suite/register_par.i: rename 'tree' to 'swig_tree'
  Examples/octave/module_load/runme.m: update 'exist()' statements for Octave >= 4.4
  Examples/octave/module_load/runme.m: do not use duplicate function names
  Examples/Makefile.in: unset OCTAVE_PATH when running Octave for tests
  Lib/octave: fix getting/setting global variables for Octave >= 4.4
  Lib/octave: use new class for function member dereference with Octave >= 4.4
  Lib/octave: fix operator installation for Octave >= 4.4
  Lib/Octave: in Octave >= 4.4, assign reference to base class in subclass
  Lib/octave: fix call to mlock() for Octave >= 4.4
  Lib/octave: fix call to octave::call_stack::current() for Octave >= 4.4
  Lib/octave: 'octave_exit' not longer exists in Octave >= 4.4
  Lib/octave: replace is_bool_type() with islogical() for Octave >= 4.4
  Lib/octave: replace is_numeric_type() with isnumeric() for Octave >= 4.4
  Lib/octave: replace is_cell() with iscell() for Octave >= 4.4
  Lib/octave: call octave::feval() instead of feval() for Octave >= 4.4
  Lib/octave: fix function name passed to unwind_protect::begin_frame()
  C#, D, Java methodmodifiers on destructors
  Javascript assert.h - move to header section
  Appveyor cl compiler warning fixes during configure
  Java vector wrappers cast correction
  test-suite fixes (Java directors) for compilers that don't support varargs
  Go - use director.swg like other languages
  test-suite fixes (2) for compilers that don't support varargs
  Consistent spacing in generated exception specifications
  test-suite fixes for compilers that don't support vararg macros
  Enhance Travis testing to use gcc 8 and test C++17 and C17
  Enhance SWIG_isfinite for older standards: C++03/C++98/C89
  test-suite support for gcc-8 targeting C++11 and C++14
  Scilab portability fixes - remove use of strdup
  Scilab array overbounds fix handling char type exceptions
  test-suite fix for c++17 and throw macro
  Remove use of 'register' in C source
  test-suite support for C++17: switch testing of the deprecated C++17 'register' keyword from C++ to C
  Examples update to support C++17: exception specification throw removal
  Cosmetic syntax tweak using throw in Octave directors
  test-suite support for C++17 (Java): exception specification throw removal
  test-suite support for C++17: exception specification throw removal
  __cplusplus macro usage tweak
  Improve detection of Python's 2to3 tool
  Correct C shared library creation when specifing CC to configure
  Remove superfluous parens in generated Python scripts.
  [ci] guile 2.2 build no longer expected to fail
  guile - resstructure some configure tests
  Disable guile configuration if guile-config and guile report a different version
  Fix guile executable detection on early 2.0.x guile versions
  guile - drop GDB_INTERFACE related stuff
  guile - replace obsolete scm_listify with scm_list_n
  guile - use more reliable method of finding guile executable based on guile-config
  Fix go version matching in configure for go1.10
  [Python] Suppress new pycodestyle warning
  Add if-no-present action for jsv8inc arg
  Fix typo in help --with-jscoreinc and --with-jscorelib
  Fix off-by-one error
  * Makefile.in (configfiles): Update URLs for latest configfiles.
  Add changes entry for Ruby %alias fix for global functions
  [Ruby] Pass Qnil instead of NULL to rb_funcall()
  Fix typo
  Fix ruby %alias directive for native c functions
  Stop testing Python on Appveyor msys/mingw
  Fix -Wimplicit-fallthrough gcc-7.3 warning

Examples/test-suite/ruby/Makefile.in

@@ -22,6 +22,7 @@ CPP_TEST_CASES = \
 	li_std_stack \
 	li_std_wstring \
 	primitive_types \
+	ruby_alias_method \
 	ruby_keywords \
 	ruby_minherit_shared_ptr \
 	ruby_naming \
@@ -44,6 +45,8 @@ CPP11_TEST_CASES = \
 
 C_TEST_CASES += \
 	li_cstring \
+	ruby_alias_global_function \
+	ruby_alias_module_function \
 	ruby_manual_proxy \
 
 include $(srcdir)/../common.mk
@@ -52,6 +55,7 @@ include $(srcdir)/../common.mk
 SWIGOPT += -w801 -noautorename -features autodoc=4
 
 # Custom tests - tests with additional commandline options
+ruby_alias_global_function.ctest: SWIGOPT += -globalmodule
 ruby_naming.cpptest: SWIGOPT += -autorename
 
 # Rules for the different types of tests

Examples/test-suite/ruby/ruby_alias_global_function_runme.rb

@@ -0,0 +1,20 @@
+#!/usr/bin/env ruby
+#
+# Runtime tests for ruby_alias_global_function.i
+#
+
+require 'swig_assert'
+require 'ruby_alias_global_function'
+
+expected_name = get_my_name
+
+swig_assert(fullname == expected_name, msg: "nickname not working as expected")
+swig_assert(nickname == expected_name, msg: "fullname not working as expected")
+
+if method(:nickname).respond_to?(:original_name)
+  swig_assert_equal_simple(method(:nickname).original_name, :get_my_name)
+  swig_assert_equal_simple(method(:fullname).original_name, :get_my_name)
+else
+  swig_assert(method(:nickname) == method(:get_my_name), msg: "nickname is not an alias of get_my_name")
+  swig_assert(method(:fullname) == method(:get_my_name), msg: "fullname is not an alias of get_my_name")
+end

Examples/test-suite/ruby/ruby_alias_method_runme.rb

@@ -0,0 +1,24 @@
+#!/usr/bin/env ruby
+#
+# Runtime tests for ruby_alias_method.i
+#
+
+require 'swig_assert'
+require 'ruby_alias_method'
+
+include Ruby_alias_method
+
+expected_name = "Chester Tester"
+syn = Synonym.new(expected_name)
+
+swig_assert(syn.getMyName() == expected_name, msg: "getMyName not working as expected")
+swig_assert(syn.nickname() == expected_name, msg: "nickname not working as expected")
+swig_assert(syn.fullname() == expected_name, msg: "fullname not working as expected")
+
+if syn.method(:nickname).respond_to?(:original_name)
+  swig_assert_equal_simple(syn.method(:nickname).original_name, :getMyName)
+  swig_assert_equal_simple(syn.method(:fullname).original_name, :getMyName)
+else
+  swig_assert(syn.method(:nickname) == syn.method(:getMyName))
+  swig_assert(syn.method(:fullname) == syn.method(:getMyName))
+end

Examples/test-suite/ruby/ruby_alias_module_function_runme.rb

@@ -0,0 +1,26 @@
+#!/usr/bin/env ruby
+#
+# Runtime tests for ruby_alias_module_function.i
+#
+
+require 'swig_assert'
+require 'ruby_alias_module_function'
+
+include Ruby_alias_module_function
+
+expected_name = Ruby_alias_module_function.get_my_name
+
+swig_assert(Ruby_alias_module_function.nickname == expected_name, msg: "nickname returned a different result than get_my_name")
+swig_assert(Ruby_alias_module_function.fullname == expected_name, msg: "fullname returned a different result than get_my_name")
+
+nickname_method =  Ruby_alias_module_function.method(:nickname)
+fullname_method =  Ruby_alias_module_function.method(:fullname)
+
+if nickname_method.respond_to?(:original_name)
+  swig_assert_equal_simple(nickname_method.original_name, :get_my_name)
+  swig_assert_equal_simple(fullname_method.original_name, :get_my_name)
+else
+  original_method = Ruby_alias_module_function.method(:get_my_name)
+  swig_assert(nickname_method == original_method, msg: "nickname is not an alias of get_my_name")
+  swig_assert(fullname_method == original_method, msg: "fullname is not an alias of get_my_name")
+end