Anonymous function to lambda: add lambda parameter if type parameter is used, even if parameter is unused

#KT-39393 Fixed

idea/testData/intentions/anonymousFunctionToLambda/typeParameterWithUnusedParameter.kt

@@ -0,0 +1,6 @@
+fun <T> foo(fn: (T) -> Unit) {}
+
+fun test() {
+    foo(<caret>fun(x: String) {
+    })
+}

idea/testData/intentions/anonymousFunctionToLambda/typeParameterWithUnusedParameter.kt.after

@@ -0,0 +1,5 @@
+fun <T> foo(fn: (T) -> Unit) {}
+
+fun test() {
+    foo { x: String -> }
+}

idea/testData/intentions/anonymousFunctionToLambda/typeParameterWithUnusedParameter2.kt

@@ -0,0 +1,6 @@
+fun <T> foo(fn: (String) -> T) {}
+
+fun test() {
+    foo(<caret>fun(x: String) {
+    })
+}

idea/testData/intentions/anonymousFunctionToLambda/typeParameterWithUnusedParameter2.kt.after

@@ -0,0 +1,5 @@
+fun <T> foo(fn: (String) -> T) {}
+
+fun test() {
+    foo { }
+}

idea/testData/intentions/anonymousFunctionToLambda/typeParameterWithVararg.kt

@@ -0,0 +1,9 @@
+fun foo(p: String) {}
+
+fun <T> bar(vararg fn: (T) -> Unit) {}
+
+fun test() {
+    bar(<caret>fun(x: String) {
+        foo(x)
+    })
+}

idea/testData/intentions/anonymousFunctionToLambda/typeParameterWithVararg.kt.after

@@ -0,0 +1,7 @@
+fun foo(p: String) {}
+
+fun <T> bar(vararg fn: (T) -> Unit) {}
+
+fun test() {
+    bar({ x: String -> foo(x) })
+}