[esan|cfrag] Create the cfrag struct array for the runtime

[esan|cfrag] Create the cfrag struct array for the runtime

Summary:
Fills the cfrag struct variable with an array of struct information
variables.

Reviewers: aizatsky, bruening

Subscribers: bruening, kcc, vitalybuka, eugenis, llvm-commits, zhaoqin

Differential Revision: http://reviews.llvm.org/D20661

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271547 91177308-0d34-0410-b5e6-96231b3b80d8