[jayhemnani9910]

Renaming a for/while label has two problems:

• With the cursor on the label declaration (outer: for ...), references, rename and highlight return nothing. Block and switch labels work. Loop labels are declared in the loop body's scope, which starts after the label, and label: inline for was not seen as a label declaration at all.
• References stop at the end of the loop body, so a break :label in the loop's else branch is left out. Renaming from the body then leaves code that does not compile:

const r = loop: while (i != 3) : (i += 1) {
    if (i == 5) break :loop i;   // rename here
} else {
    break :loop 9;               // error: label not found: 'loop'
};

lookupLabel now falls back to the label declaration at the cursor, inline after label: is a label declaration, and label references scan to the end of the whole loop.

Added cases to the label references test (for with else, while with continue expression and else, inline for) and to the label decl position context test; they fail before the change. zig build test passes (582 passed, 11 skipped).