[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

js/js.translator/testData/lineNumbers/whenEntryWithMultipleConditions.kt

@@ -19,4 +19,4 @@ fun box(x: Int) {
 }
 
 // LINES(JS):    1 19 4 4 3 3 4 6 9 9 6 11 13 13 11 16 16 3 2
-// LINES(JS_IR): 1 4 4 2 6 7 8 9 11 12 13 16
+// LINES(JS_IR): 1 1 4 4 2 8 7 6 7 8 9 12 11 12 13 16