Remove EXTERN_C macros and use block based solution

Related issue: #900

JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com

tools/vera++/scripts/rules/jerry_comment_function_end.tcl

@@ -17,7 +17,7 @@
 
 foreach fileName [getSourceFileNames] {
     set funcStart 0
-    set funcName {}
+    set funcName ""
     set lineNumber 1
     foreach line [getAllLines $fileName] {
         if {[regexp {^((static |const )*\w+ )*\w+ \(.*[,\)]} $line]} {
@@ -33,17 +33,17 @@ foreach fileName [getSourceFileNames] {
         }
 
         if {$funcStart == 1} {
-            if {[regexp {^\}$} $line]} {
+            if {[regexp {^\}$} $line] && [string length $funcName] != 0} {
                 report $fileName $lineNumber "missing comment at the end of function: /* $funcName */"
                 set funcStart 0
-            } elseif {[regexp {^\} /\*\s*\w+\s*\*/$} $line]} {
+            } elseif {[regexp {^\} /\*\s*\w+\s*\*/$} $line] && [string length $funcName] != 0} {
                 set comment {}
                 regexp {^\} /\*\s*(\w+)\s*\*/$} $line -> comment
                 if {$comment != $funcName} {
-                    report $fileName $lineNumber "comment missmatch. (Current: $comment, Expected: $funcName)"
+                    report $fileName $lineNumber "comment missmatch. (Current: $comment, Expected: $funcName) "
                 }
                 set funcStart 0
-            } elseif {[regexp {^\}.*;$} $line]} {
+            } elseif {[regexp {^\}.*;?$} $line]} {
                 set funcStart 0
             }
         }

tools/vera++/scripts/rules/jerry_indentation.tcl

@@ -1,6 +1,7 @@
 #!/usr/bin/tclsh
 
-# Copyright 2014-2015 Samsung Electronics Co., Ltd.
+# Copyright 2014-2016 Samsung Electronics Co., Ltd.
+# Copyright 2016 University of Szeged.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -52,7 +53,7 @@ foreach fileName [getSourceFileNames] {
             set lastCheckedLineNumber $lineNumber
         } elseif {$type == "space"} {
         } elseif {$type != "eof"} {
-            if {$type == "rightbrace"} {
+            if {$type == "rightbrace" && $indent > 0} {
                 incr indent -2
             }
 
@@ -100,7 +101,9 @@ foreach fileName [getSourceFileNames] {
             }
 
             if {$type == "leftbrace"} {
-                incr indent 2
+                if {![regexp {^extern "C"} [getLine $fileName [expr {$lineNumber - 1}]]]} {
+                    incr indent 2
+                }
             } elseif {$type == "leftparen"} {
                 incr parentheses_level 1
             } elseif {$type == "rightparen"} {