J2K: coversion of specially mapped built-in methods + replacing "get" with "[]" where possible

idea/src/org/jetbrains/kotlin/idea/j2k/J2kPostProcessings.kt

@@ -26,6 +26,7 @@ import org.jetbrains.kotlin.idea.inspections.RedundantSamConstructorInspection
 import org.jetbrains.kotlin.idea.intentions.*
 import org.jetbrains.kotlin.idea.intentions.branchedTransformations.intentions.IfThenToElvisIntention
 import org.jetbrains.kotlin.idea.intentions.branchedTransformations.intentions.IfThenToSafeAccessIntention
+import org.jetbrains.kotlin.idea.intentions.conventionNameCalls.ReplaceGetIntention
 import org.jetbrains.kotlin.idea.quickfix.RemoveModifierFix
 import org.jetbrains.kotlin.idea.quickfix.RemoveRightPartOfBinaryExpressionFix
 import org.jetbrains.kotlin.idea.references.mainReference
@@ -58,6 +59,7 @@ object J2KPostProcessingRegistrar {
         registerIntentionBasedProcessing(IfThenToElvisIntention()) { applyTo(it) }
         registerIntentionBasedProcessing(IfNullToElvisIntention()) { applyTo(it) }
         registerIntentionBasedProcessing(SimplifyNegatedBinaryExpressionIntention()) { applyTo(it) }
+        registerIntentionBasedProcessing(ReplaceGetIntention()) { applyTo(it) }
 
         registerDiagnosticBasedProcessing<JetBinaryExpressionWithTypeRHS>(Errors.USELESS_CAST) { element, diagnostic ->
             val expression = RemoveRightPartOfBinaryExpressionFix(element, "").invoke()

idea/testData/copyPaste/conversion/RedundantTypeCast.expected.kt

@@ -1,6 +1,6 @@
 fun foo(o: Any) {
     if (o is String) {
-        val l = o.length()
+        val l = o.length
     }
     somethingElse()
 }

idea/testData/copyPaste/conversion/RedundantTypeCast2.expected.kt

@@ -1,5 +1,5 @@
 fun foo(o: Any) {
     if (o !is String) return
-    val l = o.length()
+    val l = o.length
     somethingElse(o as String/* we should not remove this cast because it's not in pasted range*/)
 }