Fixed the finding of functions to work in name-spaces too.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/AST/Namespace.cs

@@ -234,14 +234,6 @@ namespace CppSharp.AST
             return @namespace.FindFunction(funcName, createDecl);
         }
 
-        public Function FindFunction(string name)
-        {
-            return Functions
-                .Concat(Templates.OfType<FunctionTemplate>()
-                    .Select(t => t.TemplatedFunction))
-                .FirstOrDefault(f => f.Name == name);
-        }
-
         public Function FindFunctionByUSR(string usr)
         {
             return Functions

src/Generator.Tests/AST/TestAST.cs

@@ -303,13 +303,13 @@ namespace CppSharp.Generator.Tests.AST
         [Test]
         public void TestLineNumber()
         {
-            Assert.AreEqual(65, AstContext.FindClass("HiddenInNamespace").First().LineNumberStart);
+            Assert.AreEqual(67, AstContext.FindClass("HiddenInNamespace").First().LineNumberStart);
         }
 
         [Test]
         public void TestLineNumberOfFriend()
         {
-            Assert.AreEqual(88, AstContext.FindFunction("operator+").First().LineNumberStart);
+            Assert.AreEqual(90, AstContext.FindFunction("operator+").First().LineNumberStart);
         }
 
         static string StripWindowsNewLines(string text)
@@ -351,7 +351,7 @@ namespace CppSharp.Generator.Tests.AST
         [Test]
         public void TestMacroLineNumber()
         {
-            Assert.AreEqual(98, AstContext.FindClass("HasAmbiguousFunctions").First().Specifiers.Last().LineNumberStart);
+            Assert.AreEqual(100, AstContext.FindClass("HasAmbiguousFunctions").First().Specifiers.Last().LineNumberStart);
         }
 
         [Test]
@@ -488,5 +488,12 @@ namespace CppSharp.Generator.Tests.AST
             var type = pointee.Visit(cppTypePrinter);
             Assert.That(type, Is.EqualTo("const volatile char"));
         }
+
+        [Test]
+        public void TestFindFunctionInNamespace()
+        {
+            var function = AstContext.FindFunction("Math::function").FirstOrDefault();
+            Assert.That(function, Is.Not.Null);
+        }
     }
 }

tests/Native/AST.h

@@ -21,6 +21,8 @@ namespace Math
     Complex Complex::operator+(Complex &other) {
         return Complex(re + other.re, im + other.im);
     }
+
+    void function();
 }
 
 // Tests Enum.ItemByName