fixed another oneString CGenerator bug. Most of these should really be removed, but I wanna commit this one now

src/CGenerator.cpp

@@ -572,7 +572,7 @@ CCodeTriple CGenerator::generate(NodeTree<ASTData>* from, NodeTree<ASTData>* enc
 					 	}
 					} else {
 						//return "((" + generate(children[1], enclosingObject) + ")" + name + generate(children[2], enclosingObject) + ")";
-						return "((" + generate(children[1], enclosingObject, true).oneString() + ")" + name + generate(children[2], nullptr, true).oneString() + ")";
+						return "((" + generate(children[1], enclosingObject, true) + ")" + name + generate(children[2], nullptr, true) + ")";
 					}
 				} else {
 					//It's a normal function call, not a special one or a method or anything. Name decorate.

tests/test_cgen_bug.expected_results

@@ -0,0 +1,2 @@
+1
+0

tests/test_cgen_bug.krak

@@ -0,0 +1,14 @@
+import io:*
+import vector:*
+
+fun onlyMatch(vec: vector<int>, matchWith: int): vector<int> {
+    return vec.filter(fun(it:int, other:int):bool { return it == other; }, matchWith)
+}
+
+fun main():int {
+    var vec = vector(7)
+    println(onlyMatch(vec,7).size)
+    println(onlyMatch(vec,9).size)
+
+    return 0
+}