Fixing code completion in function literal parameters

#KT-4047 Fixed
 #KT-5877 Fixed

idea/testData/completion/basic/common/FunctionLiteralParameterName0.kt

@@ -0,0 +1,6 @@
+fun bar() {
+    val handler = { <caret> }
+}
+
+// INVOCATION_COUNT: 0
+// NUMBER: 0

idea/testData/completion/basic/common/FunctionLiteralParameterName1.kt

@@ -0,0 +1,6 @@
+fun bar() {
+    val handler = { (<caret>) }
+}
+
+// INVOCATION_COUNT: 0
+// NUMBER: 0

idea/testData/completion/basic/common/FunctionLiteralParameterName2.kt

@@ -0,0 +1,5 @@
+fun bar() {
+    val handler = { (i: Int, <caret>) }
+}
+
+// NUMBER: 0

idea/testData/completion/basic/common/FunctionLiteralParameterName3.kt

@@ -0,0 +1,5 @@
+fun bar() {
+    val handler = { (i, <caret>) }
+}
+
+// NUMBER: 0

idea/testData/completion/basic/common/FunctionLiteralParameterName4.kt

@@ -0,0 +1,5 @@
+fun bar() {
+    val handler = { i, <caret> }
+}
+
+// NUMBER: 0

idea/testData/completion/basic/common/FunctionLiteralParameterName5.kt

@@ -0,0 +1,8 @@
+fun bar() {
+    val handler = { <caret>
+        foo()
+    }
+}
+
+// INVOCATION_COUNT: 0
+// NUMBER: 0

idea/testData/completion/basic/common/FunctionLiteralParameterType1.kt

@@ -0,0 +1,8 @@
+fun bar() {
+    val handler = { (i: <caret>) }
+}
+
+// EXIST: Int
+// EXIST: String
+// ABSENT: bar
+// ABSENT: handler

idea/testData/completion/basic/common/FunctionLiteralParameterType2.kt

@@ -0,0 +1,8 @@
+fun bar() {
+    val handler = { (i: <caret> }
+}
+
+// EXIST: Int
+// EXIST: String
+// ABSENT: bar
+// ABSENT: handler

idea/testData/completion/basic/common/FunctionLiteralParameterType3.kt

@@ -0,0 +1,8 @@
+fun bar() {
+    val handler = { (i: Int, s: <caret> }
+}
+
+// EXIST: Int
+// EXIST: String
+// ABSENT: bar
+// ABSENT: handler

idea/testData/completion/basic/common/FunctionLiteralParameterType4.kt

@@ -0,0 +1,8 @@
+fun bar() {
+    val handler = { (i: List<<caret>>) }
+}
+
+// EXIST: Int
+// EXIST: String
+// ABSENT: bar
+// ABSENT: handler

idea/testData/completion/basic/common/FunctionLiteralParameterType5.kt

@@ -0,0 +1,8 @@
+fun bar() {
+    val handler = { (i: Map<String, <caret> }
+}
+
+// EXIST: Int
+// EXIST: String
+// ABSENT: bar
+// ABSENT: handler