Build separate native and WASI pipelines with shared multicall names

Checkpoint before integration and package validation.

Assisted-by: SurmAgent:unknown [read] [edit] [bash]

userland/qjs/source/tests/parse-error-column.js

@@ -0,0 +1,46 @@
+import { assert } from "./assert.js";
+
+/* A SyntaxError should report the column of the offending token, not always
+   column 1. The location is exposed through the error's stack trace. */
+function errorLocation(src) {
+    try {
+        eval(src);
+    } catch (e) {
+        const m = /<input>:(\d+):(\d+)/.exec(e.stack);
+        if (m)
+            return { line: +m[1], col: +m[2] };
+    }
+    return { line: -1, col: -1 };
+}
+
+assert(errorLocation("let x = ;").col, 9);
+assert(errorLocation("1 + + ;").col, 7);
+assert(errorLocation("hocuspocus(").col, 12);
+assert(errorLocation("a b").col, 3);
+
+/* line number stays correct and the column is relative to the line start */
+{
+    const loc = errorLocation("let ok = 1\nlet z = @");
+    assert(loc.line, 2);
+    assert(loc.col, 9);
+}
+
+/* the offending token starts after a multi-line template literal */
+{
+    const loc = errorLocation("`line1\nline2\nline3`; let y = @");
+    assert(loc.line, 3);
+    assert(loc.col, 17);
+}
+
+/* the error is raised while scanning a multi-line token: the location is
+   the token's start, not where scanning stopped */
+{
+    const loc = errorLocation("let x = `abc\ndef");
+    assert(loc.line, 1);
+    assert(loc.col, 9);
+}
+{
+    const loc = errorLocation("let s = 'ab\\\ncd");
+    assert(loc.line, 1);
+    assert(loc.col, 9);
+}