[wasm][test] Do not add table in addElementSegment

This is just for convenience, and actually surprising behavior.

R=clemensh@chromium.org

Bug: v8:9183
Change-Id: I3316856e63b97bfb06da897c6f8b716bc988aa36
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1621932
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61684}

test/mjsunit/regress/wasm/regress-834619.js

@@ -26,6 +26,7 @@ load("test/mjsunit/wasm/wasm-module-builder.js");
     let builder = new WasmModuleBuilder();
     builder.addImport("q", "f2", kSig_i_v);
     builder.addImport("q", "f1", kSig_i_v);
+    builder.addTable(kWasmAnyFunc, 4);
     builder.addFunction("main", kSig_i_i)
       .addBody([
         kExprGetLocal, 0,

test/mjsunit/wasm/indirect-tables.js

@@ -812,6 +812,7 @@ function js_div(a, b) { return (a / b) | 0; }
 
   let i2 = (() => {
     let builder = new WasmModuleBuilder();
+    builder.addTable(kWasmAnyFunc, 4);
     builder.addImport("q", "f2", kSig_i_v);
     builder.addImport("q", "f1", kSig_i_v);
     builder.addFunction("main", kSig_i_i)
@@ -867,6 +868,7 @@ function js_div(a, b) { return (a / b) | 0; }
   let main = (() => {
     let builder = new WasmModuleBuilder();
     builder.addMemory(1, 1, false);
+    builder.addTable(kWasmAnyFunc, 4);
     builder.addImport("q", "f1", kSig_i_v);
     builder.addImport("q", "f2", kSig_i_v);
     builder.addImport("q", "f3", kSig_i_v);

test/mjsunit/wasm/return-calls.js

@@ -133,7 +133,9 @@ load("test/mjsunit/wasm/wasm-module-builder.js");
   const sig_i_iii = builder.addType(kSig_i_iii);
 
   let pick = builder.addImport("q", "pick", sig_i_iii);
-  const tableIndex = 3; // Arbitrary location of import
+  builder.addTable(kWasmAnyFunc, 4);
+  // Arbitrary location in the table.
+  const tableIndex = 3;
 
   builder.addElementSegment(0, tableIndex,false,[pick]);
 

test/mjsunit/wasm/wasm-module-builder.js

@@ -898,9 +898,6 @@ class WasmModuleBuilder {
   }
 
   addElementSegment(table, base, is_global, array) {
-    if (this.tables.length + this.num_imported_tables == 0) {
-      this.addTable(kWasmAnyFunc, 0);
-    }
     this.element_segments.push({table: table, base: base, is_global: is_global,
                                     array: array, is_active: true});