Bug 902210 - Suppress the invalid exact rooting hazard in GetWeakmapKeyDelegate; r=sfink

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extra : rebase_source : 752cc5c02ae39a2f8fb7e6ac34e4e6bd93e2c713
Bug 902218 - Suppress static analysis hazard from virtual call to DescribeGenericObjects; r=sfink

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extra : rebase_source : 05bb33a1d2e2f8c755745dbe7b6f53d72c3ea931
Bug 902224 - Suppress static analysis hazard from virtual call to NoteCustomGCThingXPCOMChildren; r=sfink

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extra : rebase_source : 6f3d5de926db0ae857bd38e533ad54e7c87ab6c8