hg: lanai/lanai: 8239220: Update text cache management to handle lot of unique glyphs

[jayathirth.d.v at oracle.com]

Changeset: eaea7745cf54
Author:    jdv
Date:      2020-02-17 17:32 +0530
URL:       https://hg.openjdk.java.net/lanai/lanai/rev/eaea7745cf54

8239220: Update text cache management to handle lot of unique glyphs

! src/java.desktop/macosx/native/libawt_lwawt/java2d/metal/MTLGlyphCache.h
! src/java.desktop/macosx/native/libawt_lwawt/java2d/metal/MTLGlyphCache.m
! src/java.desktop/macosx/native/libawt_lwawt/java2d/metal/MTLTextRenderer.m