C++, C#: Properly set scope on namespaces

Closes #871.

tagmanager/ctags/c.c

@@ -1196,9 +1196,6 @@ static void addOtherFields (tagEntryInfo* const tag, const tagType type,
 		default: break;
 
 		case TAG_NAMESPACE:
-			/* D nested template block */
-			if (!isLanguage(Lang_d))
-				break;
 		case TAG_CLASS:
 		case TAG_ENUM:
 		case TAG_ENUMERATOR:

tests/ctags/bug1799343-2.cpp.tags

 # format=tagmanager
 A2560
 B2560
-C2560
+C256A0
 P10
 P1A0
 Q1A0

tests/ctags/bug665086.cpp.tags

 # format=tagmanager
 C121N1::N20
 N12560
-N22560
+N2256N10

tests/ctags/general.cs.tags

@@ -9,7 +9,7 @@ MyClass2
 MyDelegate128()MyNamespace10delegate int
 MyEnum2MyNamespace10
 MyNamespace12560
-MyNamespace22560
+MyNamespace2256MyNamespace10
 MyStruct2048MyNamespace10
 N12560
-N22560
+N2256N10

tests/ctags/keyword_namespace.cs.tags

@@ -2,7 +2,7 @@
 AlternativeNestedNameSpaceClass1SomeNameSpace.Nested0
 Main128()SomeNameSpace.MyClass0public void
 MyClass1SomeNameSpace0
-Nested2560
+Nested256SomeNameSpace0
 NestedNameSpaceClass1SomeNameSpace.Nested0
 SayHello128()SomeNameSpace.Nested.NestedNameSpaceClass0public void
 SomeNameSpace2560

tests/ctags/namespace.cpp.tags

@@ -4,4 +4,4 @@ a_b_f
 a_f16()a0void
 anon_f16()anon_namespace_00void
 anon_namespace_02560
-b2560
+b256a0