ir: Do the proper thing for methods.

Author: emilio

libbindgen/src/ir/function.rs

@@ -187,7 +187,8 @@ impl FunctionSig {
 
         let is_method = cursor.kind() == CXCursor_CXXMethod;
         let is_constructor = cursor.kind() == CXCursor_Constructor;
-        if is_constructor && cursor.lexical_parent() != cursor.semantic_parent() {
+        if (is_constructor || is_method) &&
+            cursor.lexical_parent() != cursor.semantic_parent() {
             // Only parse constructors once.
             return Err(ParseError::Continue);
         }

libbindgen/tests/headers/constructor-tp.hpp

@@ -3,8 +3,15 @@ template<typename T>
 class Foo {
 public:
   Foo();
+
+  void doBaz();
 };
 
+template<typename T>
+inline void
+Foo<T>::doBaz() {
+}
+
 class Bar {
 public:
   Bar();