Avoid conflicting symbols with V8

V8 uses absl and so does dawn.node.
But they use different options apparently.

Author: greggman

build/build.js

@@ -55,6 +55,8 @@ async function createProject() {
       '-DDAWN_BUILD_NODE_BINDINGS=1',
       '-DDAWN_USE_X11=OFF',
       `-DCMAKE_BUILD_TYPE=${kConfig}`,
+      '-DCMAKE_CXX_VISIBILITY_PRESET=hidden',
+      '-DCMAKE_VISIBILITY_INLINES_HIDDEN=1',
       ...addElemIf(isMac, '-DCMAKE_OSX_ARCHITECTURES="x86_64;arm64"'),
       ...addElemIf(isWin, '-DCMAKE_SYSTEM_VERSION=10.0.26100.0'),
       ...addElemIf(isMac, '-DCMAKE_OSX_SYSROOT=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk'),