Update error message

crates/sema/src/ast_passes.rs

@@ -89,9 +89,20 @@ impl<'ast> Visit<'ast> for AstValidator<'_> {
                 self.walk_stmt(body);
                 self.in_loop_depth -= 1;
             }
-            StmtKind::Break | StmtKind::Continue => {
+            StmtKind::Break => {
                 if !self.in_loop() {
-                    self.dcx().err("`break` outside of a loop").span(stmt.span).emit();
+                    self.dcx()
+                        .err("\"break\" has to be in a \"for\" or \"while\" loop.")
+                        .span(stmt.span)
+                        .emit();
+                }
+            }
+            StmtKind::Continue => {
+                if !self.in_loop() {
+                    self.dcx()
+                        .err("\"continue\" has to be in a \"for\" or \"while\" loop.")
+                        .span(stmt.span)
+                        .emit();
                 }
             }
             _ => {}

tests/ui/parser/break_continue_outside_loop.sol

@@ -1,7 +1,7 @@
 contract C {
     function f() {
-        break; //~ ERROR: `break` outside of a loop
-        continue; //~ ERROR: `break` outside of a loop
+        break; //~ ERROR: "break" has to be in a "for" or "while" loop.
+        continue; //~ ERROR: "continue" has to be in a "for" or "while" loop.
 
         for (uint256 i = 0; i < 10; i++) {
             break;

tests/ui/parser/break_continue_outside_loop.stderr

@@ -1,11 +1,11 @@
-error: `break` outside of a loop
+error: "break" has to be in a "for" or "while" loop.
   --> ROOT/tests/ui/parser/break_continue_outside_loop.sol:LL:CC
    |
 LL |         break;
    |         ^^^^^^
    |
 
-error: `break` outside of a loop
+error: "continue" has to be in a "for" or "while" loop.
   --> ROOT/tests/ui/parser/break_continue_outside_loop.sol:LL:CC
    |
 LL |         continue;