FIR IDE: Fix completion in property setters

Property consists of getter and setter (both optional). The setter
have a single `value` parameter with type

Because of it, we have to make a separate 'frankenstein setter' with
original resolved header, but with the body of the fake one

It seems that getters does not have such issues

idea/idea-completion/testData/basic/common/primitiveCompletion/topLevelPropertyGetterBodyCompletion.kt

@@ -0,0 +1,10 @@
+// FIR_COMPARISON
+
+fun localFun(): Int {}
+
+val property: Int
+    get() {
+        <caret>
+    }
+
+// EXIST: localFun

idea/idea-completion/testData/basic/common/primitiveCompletion/topLevelPropertyGetterExpressionCompletion.kt

@@ -0,0 +1,8 @@
+// FIR_COMPARISON
+
+fun localFun(): Int {}
+
+val property: Int
+    get() = <caret>
+
+// EXIST: localFun

idea/idea-completion/testData/basic/common/primitiveCompletion/topLevelPropertyGetterTypeCompletion.kt

@@ -0,0 +1,8 @@
+// FIR_COMPARISON
+
+class LocalType
+
+val property
+    get(): <caret>
+
+// EXIST: LocalType

idea/idea-completion/testData/basic/common/primitiveCompletion/topLevelPropertyInitializerCompletion.kt

@@ -0,0 +1,7 @@
+// FIR_COMPARISON
+
+fun localFun(): Int {}
+
+val property = <caret>
+
+// EXIST: localFun

idea/idea-completion/testData/basic/common/primitiveCompletion/topLevelPropertySetterBodyCompletion.kt

@@ -0,0 +1,11 @@
+// FIR_COMPARISON
+
+fun localFun() {}
+
+var property: Int
+    get() = 1
+    set(value) {
+        <caret>
+    }
+
+// EXIST: localFun

idea/idea-completion/testData/basic/common/primitiveCompletion/topLevelPropertySetterExpressionCompletion.kt

@@ -0,0 +1,9 @@
+// FIR_COMPARISON
+
+fun localFun() {}
+
+var property: Int
+    get() = 1
+    set(value) = <caret>
+
+// EXIST: localFun

idea/idea-completion/testData/basic/common/primitiveCompletion/topLevelPropertyTypeCompletion.kt

@@ -0,0 +1,7 @@
+// FIR_COMPARISON
+
+class LocalType
+
+val property: <caret>
+
+// EXIST: LocalType