Bug 1832022 - Consider to increase import-instr-limit to 30, r=sergesanspaille

Differential Revision: https://phabricator.services.mozilla.com/D185078

Author: Olli Pettay

build/moz.configure/lto-pgo.configure

@@ -405,11 +405,11 @@ def lto(
     # binary size growth while still getting good performance.
     # (For hot functions, PGO will put a multiplier on this limit.)
     if target.os == "WINNT":
-        ldflags.append("-mllvm:-import-instr-limit=10")
+        ldflags.append("-mllvm:-import-instr-limit=30")
     elif target.kernel == "Darwin":
-        ldflags.append("-Wl,-mllvm,-import-instr-limit=10")
+        ldflags.append("-Wl,-mllvm,-import-instr-limit=30")
     elif c_compiler.type == "clang":
-        ldflags.append("-Wl,-plugin-opt=-import-instr-limit=10")
+        ldflags.append("-Wl,-plugin-opt=-import-instr-limit=30")
 
     # If we're using the new pass manager, we can also enable the new PM
     # during LTO. Further we can use the resulting size savings to increase