[embind] Autogen EM_METHOD_CALLER_KIND bindings. NFC (emscripten-core#24521)

Author: RReverser

src/lib/libemval.js

@@ -320,7 +320,7 @@ var LibraryEmVal = {
 
     var offset = 0;
     var argsList = []; // 'obj?, arg0, arg1, arg2, ... , argN'
-    if (kind === /* FUNCTION */ 0) {
+    if (kind === {{{ cDefs['internal::EM_METHOD_CALLER_KIND::FUNCTION'] }}}) {
       argsList.push('obj');
     }
     var params = ['retType'];
@@ -333,7 +333,7 @@ var LibraryEmVal = {
         `  var arg${i} = argType${i}.readValueFromPointer(args${offset ? '+' + offset : ''});\n`;
       offset += GenericWireTypeSize;
     }
-    var invoker = kind === /* CONSTRUCTOR */ 1 ? 'new func' : 'func.call';
+    var invoker = kind === {{{ cDefs['internal::EM_METHOD_CALLER_KIND::CONSTRUCTOR'] }}} ? 'new func' : 'func.call';
     functionBody +=
       `  var rv = ${invoker}(${argsList.join(', ')});\n`;
     if (!retType.isVoid) {

src/struct_info_cxx.json

@@ -23,5 +23,13 @@
             "wasmfs::File::DirectoryKind",
             "wasmfs::File::SymlinkKind"
         ]
+    },
+    // Embind
+    {
+        "file": "emscripten/val.h",
+        "defines": [
+            "emscripten::internal::EM_METHOD_CALLER_KIND::FUNCTION",
+            "emscripten::internal::EM_METHOD_CALLER_KIND::CONSTRUCTOR"
+        ]
     }
 ]

src/struct_info_generated.json

@@ -515,7 +515,9 @@
         "__WASI_RIGHTS_PATH_SYMLINK": 16777216,
         "__WASI_RIGHTS_PATH_UNLINK_FILE": 67108864,
         "__WASI_RIGHTS_POLL_FD_READWRITE": 134217728,
-        "__WASI_RIGHTS_SOCK_SHUTDOWN": 268435456
+        "__WASI_RIGHTS_SOCK_SHUTDOWN": 268435456,
+        "internal::EM_METHOD_CALLER_KIND::CONSTRUCTOR": 1,
+        "internal::EM_METHOD_CALLER_KIND::FUNCTION": 0
     },
     "structs": {
         "AudioParamFrame": {

src/struct_info_generated_wasm64.json

@@ -515,7 +515,9 @@
         "__WASI_RIGHTS_PATH_SYMLINK": 16777216,
         "__WASI_RIGHTS_PATH_UNLINK_FILE": 67108864,
         "__WASI_RIGHTS_POLL_FD_READWRITE": 134217728,
-        "__WASI_RIGHTS_SOCK_SHUTDOWN": 268435456
+        "__WASI_RIGHTS_SOCK_SHUTDOWN": 268435456,
+        "internal::EM_METHOD_CALLER_KIND::CONSTRUCTOR": 1,
+        "internal::EM_METHOD_CALLER_KIND::FUNCTION": 0
     },
     "structs": {
         "AudioParamFrame": {