[JS IR] Improve debug info precision for blocks

Namely:
- Generate debug info for closing braces, which allows the breakpoints
  set on closing braces to be hit
- Generate debug info for 'if' and 'try/catch' statements.

KT-46276

compiler/testData/debug/stepping/multilineFunctionCall.kt

@@ -17,3 +17,5 @@ fun foo(i: Int) {
 
 // EXPECTATIONS JS_IR
 // test.kt:4 box
+// test.kt:10 foo
+// test.kt:7 box