Dont crash on API errors

src/core/lib/surface/call.c

...pi_fuzzer_corpus/00ba96baafa4595f2d41c2fcf0a27f4e9be5c44d

...pi_fuzzer_corpus/06a298ad14533924c9fcb2df0d462c44a206f64b

...pi_fuzzer_corpus/0914e4f6ee18c9d15b8df1858a7745b86d875970

...pi_fuzzer_corpus/091f02cc858a89253748b7d1051b8728d0e34015

...pi_fuzzer_corpus/095e3fa32a271ef9326d4dcd59fbd003977fdcfa

...pi_fuzzer_corpus/0dfc84a6703bdbe9a6acb72e178353d5d69f5814

...pi_fuzzer_corpus/0ec11a92c1830b4c2f56a0979dd9e3c7162bd624

...pi_fuzzer_corpus/163cf93cebfb32d617830aa4e69e8b5f59bd3a08

...pi_fuzzer_corpus/1776f4c32c11490c65b81d0b7ae2ece4a3d1e9a7

...pi_fuzzer_corpus/19fdd6cdeee7a5cbc991d0e3242c23d5aaff2fbf

...pi_fuzzer_corpus/1b331dfc1d9d535063f0cc6f7a709499a5f8cb59

...pi_fuzzer_corpus/1c968074e9dcd8e9922e6c01ecfedcaf7b2fe5a3

...pi_fuzzer_corpus/1cae148c387cd20a1742d902543c2c8396589479

...pi_fuzzer_corpus/1de191d81c4c7bf0e026bff0a040165c084fd630

...pi_fuzzer_corpus/224b2255a1bd250102481abc3e823090650e231e

...pi_fuzzer_corpus/23746fe5e477430aec8b12e9d7de0f86f6a6e191

...pi_fuzzer_corpus/26794761df5dc7f093d2395b81a32af5e6b54392

...pi_fuzzer_corpus/289c2b6211858aa4a46b5b489bc4c9dd47828d21

...pi_fuzzer_corpus/2bb76eff88c5af98c4b8828047837fe97b50cfeb