Add scopes symbol navigation (#189)

* Add meta.function-call.powershell scope to function calls

This enables Sublime Text to correctly find references to functions being called,
at least for functions written according to the recommended style.

* Define 'class-method' context in syntax file

Static and instance methods are now identified as functions.
F12 and shift+F12 can now correctly find definitions and references of class methods.

* Fix wrong scope name in 'class-method' context

PowerShell.sublime-syntax

@@ -52,6 +52,7 @@ contexts:
     - include: script-block
     - include: escape-characters
     - include: numeric-constant
+    - include: class-method
     - match: (@)(\()
       captures:
         1: keyword.other.array.begin.powershell
@@ -342,7 +343,7 @@ contexts:
           \-\w+?                                                               # Any "noun"
           (?:\.(?i:exe|cmd|bat|ps1))?\b                                        # More path stuff
         )
-      scope: support.function.powershell
+      scope: meta.function-call.powershell support.function.powershell
     # Builtin cmdlets with reserved verbs
     - match: \b(?i:(?:foreach|where|sort|tee)-object)\b
       scope: support.function.powershell
@@ -793,3 +794,17 @@ contexts:
         3: support.variable.drive.powershell
         4: variable.other.readwrite.powershell
         5: punctuation.section.braces.end
+
+  class-method:
+    - match: ^(?:\s*)(?i)(hidden|static)?\s*(\[)((?!\d+|\.)[\p{L}\p{N}.]+)(\])\s*((?:\p{L}|\d|_|-|\.)+)\s*(?=\()
+      scope: meta.function.powershell
+      captures:
+        1: storage.modifier.powershell
+        2: punctuation.section.brackets.begin.powershell
+        3: storage.type.powershell
+        4: punctuation.section.brackets.end.powershell
+        5: entity.name.function.powershell
+      push:
+        - match: (?=\()
+          pop: true
+        - include: comment-line

Tests/syntax_test_Class.ps1

@@ -80,6 +80,8 @@ class TypeName
     #      ^ punctuation.section.brackets.begin
     #       ^^^^ storage.type
     #           ^ punctuation.section.brackets.end
+    #             ^^^^^^^^^^^^^ entity.name.function
+    #             @@@@@@@@@@@@@ definition
     #                          ^ punctuation.section.group.begin
     #                           ^ punctuation.section.brackets.begin
     #                            ^^^^^^^^^ storage.type
@@ -105,6 +107,8 @@ class TypeName
     # <- punctuation.section.brackets.begin
     # ^ storage.type
     #   ^ punctuation.section.brackets.end
+    #     ^^^^^^^^^^^^^ entity.name.function
+    #     @@@@@@@@@@@@@ definition
     #                  ^ punctuation.section.group.begin
     #                   ^ punctuation.section.brackets.begin
     #                    ^^^ storage.type
@@ -126,3 +130,9 @@ class TypeName
         #            ^^ variable.other.member
     }
 }
+
+[TypeName]::MemberMethod1()
+#           @@@@@@@@@@@@@ reference
+
+$object.MemberMethod2()
+#       @@@@@@@@@@@@@ reference

Tests/syntax_test_Function.ps1

@@ -5,6 +5,8 @@ using module Microsoft.Management
 #     ^ keyword.other
 #            ^ variable.parameter
 
+function Test-Path {}
+#        @@@@@@@@@ definition
 <#
 # <- punctuation.definition.comment.block.begin
     .Synopsis
@@ -321,6 +323,7 @@ function Verb-Noun {
         #                                            ^ meta.attribute punctuation.section.group.end
         #                                             ^ meta.attribute punctuation.section.brackets.end
         [ValidateScript({Test-Path $_})] #Make sure cmdlets don't break highlighting
+        #                @@@@@@@@@ reference
         # <- meta.attribute punctuation.section.brackets.begin
         # ^ meta.attribute support.function.attribute
         #              ^ meta.attribute punctuation.section.group.begin