Add explicit return types to several test data files so that AST access is not needed

Test cases are chosen so that addition/removal of explicit type will not interfere with the original purpose of the test

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/ClassFun.kt

@@ -1,5 +1,5 @@
 package test
 
 class River {
-    fun song() = 1
+    fun song(): Int = 1
 }

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/ClassFunGetFoo.kt

@@ -1,5 +1,5 @@
 package test
 
 class ClassFunGetFoo {
-    fun getFoo() = 1
+    fun getFoo(): Int = 1
 }

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/ClassFunGetFooSetFoo.kt

@@ -1,6 +1,6 @@
 package test
 
 class ClassFunGetFoo {
-    fun getFoo() = 1
+    fun getFoo(): Int = 1
     fun setFoo(p: Int) {}
 }

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/ExtFun.kt

@@ -1,3 +1,3 @@
 package test
 
-fun Int.shuffle() = 1
+fun Int.shuffle(): Int = 1

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/ExtFunInClass.kt

@@ -1,5 +1,5 @@
 package test
 
 class ExtFunInClass {
-    fun Int.shuffle() = 1
+    fun Int.shuffle(): Int = 1
 }

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/FunDefaultArg.kt

@@ -1,3 +1,3 @@
 package test
 
-fun funDefaultArg(p: Int, q: Int = 17, r: Int = 18) = 19
+fun funDefaultArg(p: Int, q: Int = 17, r: Int = 18): Int = 19

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/FunParamNotNull.kt

@@ -1,3 +1,3 @@
 package test
 
-fun fff(a: java.lang.Integer) = 1
+fun fff(a: java.lang.Integer): Int = 1

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/FunVarargInt.kt

@@ -1,3 +1,3 @@
 package test
 
-fun varargInt(a: Int, vararg b: Int) = 1
+fun varargInt(a: Int, vararg b: Int): Int = 1

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/FunVarargInteger.kt

@@ -1,3 +1,3 @@
 package test
 
-fun varargCharSequence(a: Int, vararg b: java.lang.Integer) = 1
+fun varargCharSequence(a: Int, vararg b: java.lang.Integer): Int = 1

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/ModifierOpen.kt

@@ -1,5 +1,5 @@
 package test
 
 open class ModifierOpen {
-    open fun abs() = 1
+    open fun abs(): Int = 1
 }

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/NsFun.kt

@@ -1,3 +1,3 @@
 package test
 
-fun f() = 1
+fun f(): Int = 1

compiler/testData/loadJava/compiledKotlin/fun/nonGeneric/NsFunGetFoo.kt

@@ -1,3 +1,3 @@
 package test
 
-fun getFoo() = 1
+fun getFoo(): Int = 1