Disable name mangling in Kotlin

Author: lptr

spaghetti-kotlin-support/src/main/groovy/com/prezi/spaghetti/kotlin/KotlinInterfaceGeneratorVisitor.groovy

@@ -1,6 +1,7 @@
 package com.prezi.spaghetti.kotlin
 
 import com.prezi.spaghetti.ast.InterfaceNode
+import com.prezi.spaghetti.ast.MethodNode
 
 class KotlinInterfaceGeneratorVisitor extends AbstractKotlinMethodGeneratorVisitor {
 
@@ -20,6 +21,18 @@ ${methodDefinitions}
 """
 	}
 
+	@Override
+	String visitMethodNode(MethodNode node) {
+		def returnType = node.returnType.accept(this)
+		returnType = wrapNullableTypeReference(returnType, node)
+		def typeParams = node.typeParameters ? "<" + node.typeParameters*.name.join(", ") + "> " : ""
+		def params = node.parameters*.accept(this).join(", ")
+
+		return \
+"""	native fun ${typeParams}${node.name}(${params}):${returnType}
+"""
+	}
+
 	private static String defineType(String typeName, Collection<?> superTypes) {
 		def declaration = "trait ${typeName}"
 		if (!superTypes.empty) {

spaghetti-kotlin-support/src/test/groovy/com/prezi/spaghetti/kotlin/KotlinInterfaceGeneratorVisitorTest.groovy

@@ -36,9 +36,9 @@ class KotlinInterfaceGeneratorVisitorTest extends AstTestBase {
 	/**
 	 * Does something.
 	 */
-	fun doSomething():Unit
-	fun doSomethingElse(a:Int?, b:Int? = null):Array<String>?
-	fun <T, U> hello(f:(X,()->Int)->U):Array<T>
+	native fun doSomething():Unit
+	native fun doSomethingElse(a:Int?, b:Int? = null):Array<String>?
+	native fun <T, U> hello(f:(X,()->Int)->U):Array<T>
 
 }
 """