wasm: Fix qmake build

Add missing '\' on multiline variable assignment.

Sync EXPORTED_METHODS with cmake build.

Change-Id: I8c790c5f8a7bdae75d6b3e3d6e4482f6c69ecbe8
Reviewed-by: David Skoland <david.skoland@qt.io>
Reviewed-by: Mikołaj Boc <Mikolaj.Boc@qt.io>

mkspecs/common/wasm/wasm.conf

@@ -35,7 +35,7 @@ EMCC_COMMON_LFLAGS += \
     --bind \
     -s FETCH=1 \
     -s MODULARIZE=1 \
-    -s EXPORT_NAME=createQtAppInstance
+    -s EXPORT_NAME=createQtAppInstance \
     -s WASM_BIGINT=1
 
 # The -s arguments can also be used with release builds,

mkspecs/features/wasm/wasm.prf

@@ -9,9 +9,9 @@ exists($$QMAKE_QT_CONFIG) {
 
     ## qmake puts a space if done otherwise
     !isEmpty(QT_WASM_EXTRA_EXPORTED_METHODS): {
-        EXPORTED_METHODS = UTF16ToString,stringToUTF16,$$QT_WASM_EXTRA_EXPORTED_METHODS
+        EXPORTED_METHODS = UTF16ToString,stringToUTF16,JSEvents,specialHTMLTargets,$$QT_WASM_EXTRA_EXPORTED_METHODS
     } else {
-         EXPORTED_METHODS = UTF16ToString,stringToUTF16
+        EXPORTED_METHODS = UTF16ToString,stringToUTF16,JSEvents,specialHTMLTargets
     }
     EMCC_LFLAGS += -s EXPORTED_RUNTIME_METHODS=$$EXPORTED_METHODS