Introduce "use expression body" inspection #KT-16063 Fixed

Converted from the relevant intention
Reported cases: one-liners, whens
Also, more exact caret detection in local inspection tests

idea/testData/quickfix/createFromUsage/createFunction/call/abstract/notAbstractClass.kt

@@ -1,5 +1,4 @@
 // "Create abstract function 'foo'" "false"
-// ACTION: Convert to expression body
 // ACTION: Create function 'foo'
 // ACTION: Rename reference
 // ERROR: Unresolved reference: foo

idea/testData/quickfix/createFromUsage/createFunction/call/abstract/otherExplicitReceiver.kt

@@ -1,5 +1,4 @@
 // "Create abstract function 'foo'" "false"
-// ACTION: Convert to expression body
 // ACTION: Create extension function 'B.foo'
 // ACTION: Create member function 'B.foo'
 // ACTION: Rename reference

idea/testData/quickfix/createFromUsage/createFunction/call/callInAnnotationEntry.kt

@@ -4,7 +4,6 @@
 // ACTION: Make private
 // ACTION: Rename reference
 // ACTION: Put arguments on separate lines
-// ACTION: Convert to expression body
 // ERROR: Unresolved reference: foo
 // ERROR: Unresolved reference: bar
 

idea/testData/quickfix/createFromUsage/createFunction/call/extensionByExtensionReceiver/notExtensionCallable.kt

@@ -1,5 +1,4 @@
 // "Create extension function 'foo'" "false"
-// ACTION: Convert to expression body
 // ACTION: Create function 'foo'
 // ACTION: Rename reference
 // ERROR: Unresolved reference: foo

idea/testData/quickfix/createFromUsage/createFunction/call/funOnGroovyType.before.Main.kt

@@ -1,5 +1,4 @@
 // "Create member function 'foo'" "false"
-// ACTION: Convert to expression body
 // ACTION: Create extension function 'A.foo'
 // ACTION: Rename reference
 // ERROR: Unresolved reference: foo

idea/testData/quickfix/createFromUsage/createFunction/call/propertyOnUserType.kt

@@ -1,5 +1,4 @@
 // "Create member function 'foo'" "false"
-// ACTION: Convert to expression body
 // ERROR: Unresolved reference: x
 
 class A<T>(val n: T) {

idea/testData/quickfix/createFromUsage/createFunction/callableReferences/noFunctionalType.kt

@@ -1,5 +1,4 @@
 // "Create function 'foo'" "false"
-// ACTION: Convert to expression body
 // ACTION: Rename reference
 // ERROR: Unresolved reference: foo
 fun bar(n: Int) = "$n"