Fix file-scope contract call handling in Solana#1875

Embers-of-the-Fire wants to merge 5 commits intohyperledger-solang:mainhyperledger-solang/solang:mainfrom

Embers-of-the-Fire:bug/solana-state-init-external-callEmbers-of-the-Fire/solang:bug/solana-state-init-external-callCopy head branch name to clipboard