Implement Unwrap/Remove for try expressions

idea/testData/codeInsight/unwrapAndRemove/removeCatch/catch.kt

@@ -0,0 +1,15 @@
+// OPTION: 1
+fun foo(n: Int): Int {
+    return try {
+        n / 0
+    }
+    <caret>catch (e: ArithmeticException) {
+        -1
+    }
+    catch (e: Exception) {
+        -2
+    }
+    finally {
+
+    }
+}